If you like any survival horror game you will love this. I do like it a little bit better than any survival game just because of the psychological horror. Combined with the fun ways to kill everything that moves.
Absolutely incredible. The atmosphere is so perfectly executed and eerie and the killers range from insanely difficult to fight (in the best way) to absolutely terrifying. Usually both. Very long, lots to do, great story, satisfying feel to the weapons.
Be sure to play on Hard difficulty, otherwise you're simply cheating yourself. Overall a great game.